>>59020979I can see the argument for the tera shard being a held item, the issue is I think "anyone can tera" is an important way of balancing mega evos. In the Gen VI meta every single team had a mega-able mon and every team brought and used the mega without exception. It'd be like not bringing your one Restricted in Reg H. And since you were always running one and only one mega, the meta became centralized around those megas specifically. You ever even ran two megas and picked one (or at least rarely) because sacrificing a held item for the OPTION to mega that you didn't use neutered the mon so much versus just committing to a single mega and slapping a CB or Life Orb or whatever.
Obviously the meta will always be centralized around more powerful mons, but "anyone can tera" meant for every mon you built, you thought about the circumstances where you'd want to tera it, and what the best tera for that situation would be. If you have to "build for tera" that means the number of mons that would ever actually use tera drops dramatically as it stops being something that's situational.
And I mean, you ask, does my Dnite carry mega stone or normal tera shard... if your Dnite carries a mega stone, it CAN'T normal tera, it can only mega. So you still have to make the choice between whether it's going to tera or mega at build level. It's just that choosing a tera-focused build for it gives you the ability to put a different item on it. Which is less about "tera normal dragonite NEEDS leftovers" or whatever, and more about "if I have to put a tera shard on a pokemon in order to enable it to tera, that means I'm building my team around that specific mon tera-ing, and only that mon, because carrying multiple mons with tera shards when I can only tera one of them gimps the shit out of me".